This period of time has been in the introduction of a number of articles about pet plastic bottles, neglecting to introduce the market has been used to compare with the pet for many reasons of the same characteristics.pp plastic bottle。一般PP塑料瓶中摻加0.1%-0.4%山梨醇縮二甲苯成核劑，經(jīng)過(guò)吹擠、吹拉、注射、揉捏等方法能夠出產(chǎn)出高通明PP塑料瓶。PP塑料瓶耐溫功能好，瓶型描繪靈敏，平安性、衛生性和內容物的口感堅持方面表示遜色，打比賽股價(jià)錢(qián)比PET、PS、PE等材料廉價(jià)。雖然PET塑料瓶認識化妝品包裝的主流選擇，但是隨著(zhù)改性樹(shù)脂、增透劑以及機械設備技能的不時(shí)發(fā)展，使得PP容器能夠代替玻璃、PET和PVC容器，有著(zhù)寬廣的商場(chǎng)前景。PP塑料瓶在化妝品包裝商場(chǎng)中的使用規模已逐步挨近PET瓶。

Basic information on PP plastics

Polypropylene (PP) Applications: Microwave cutlery, tubs, plastic buckets, thermos shells, woven bags, etc.
Characteristics:High chemical stability, good hygienic properties, high heat resistance. Microwaveable tableware can be used with plastic products labeled PP.
Toxicity:Non-toxic and harmless to the human body.
The polymer can have three stereo structures:Isotropic, intermediate and atactic polypropylene, the first two can crystallize, the latter can not. Commercially available polypropylene products are basically the structure of the market iso-gauge, melting point of 164 ~ 170 degrees Celsius, the density of the crystalline part of 0.935 g / cm3, non-clean part of 0.851 g / cm3.
The biggest disadvantage of PP is that it is easy to oxidize and age. It is now overcome by adding antioxidants and ultraviolet absorbers.

What are the other advantages of PP plastic bottles?

Although so far, no superior or better package material found to replace PET plastic bottles. But PP bottles are mainly one-step injection pull blowing and two-step heating pull blowing molding machine in the molding of PP bottles with bright, robust, heat-resistant advantages, the price is also lower than other plastics, can be stored at 100 ℃ for hot filling, and the general PET bottles can not be filled at a temperature higher than 76 ℃ of the glass transition. PP on the water insulation function is about 5 times as much as PET, PP pre-molded products production equipment than PET pre-molded products production equipment price is lower. The price of PP preform production equipment is lower than that of PET preform production equipment.PP bottles have longer recycling time than PET bottlesThe